Questions tagged [packages]
In electronics packages refer to the physical encapsulation of a device. Most package names are standardized, so for example a TO-92 package will have similar dimensions and pin spacing between manufacturers so the same PCB footprint may be used. Be aware however many packages have subtle variations, for example TO-206AA, TO-206AB and TO-206AC.
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What should I do with the unused diode in the SOT-323-3 (SC-70-3) package?
I'm planning to use one of this diode in my circuit. But the package contains two of them. I chose it mainly because of its 3ns reverse recovery time. How do I use them in my circuit?
I have three ...
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Looking for a solution to tape and reeling 01005 components
Current tape and reel causes 01005 size components to move around. How can I have them packaged so they can retain their original orientation?
I've spoken to many reeling houses, any feedback is ...
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What's the purpose of these copper tracks on the bottom of BGA package?
These are STM32F746NGH6 microcontroller chips in .8 mm pitch BGA package. I noticed that there are copper tracks on the bottom of this chip, some of which lead to the edge of the chip and are left ...
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IC package reliability with physical stress
One of the ICs for my design comes in LQFP, TSSOP, QFN and even WLCSP packages. I don't care about the footprint, and the only thing that I want to maximize with the package choice is reliability ...
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Is IC power pin position (V+ / V-) for a package mostly standardized for opamps, comparators, INAs etc.?
Is the power pin position for certain types of ICs standardized or practically, mostly standard? I assume there are rare exceptions and manufacturers could do what they want, but the general answer to ...
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MOSFET SOA: Isn't the package current limit-line ambient temperature dependent?
Ref 1 says "The package limit-line will not change in case application conditions such as ambient
temperature vary"
As explained in Ref2, this limit is due to bond wire heating/melting.
If ...
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Has any implementation succeeded to have shared key inside chipset and protect it from exploits?
Since there is a lot of demonstration like using SEM (Scanning Electron Microscope) to read bits from ROM through the scanned image of chipset, is there any implementation that has managed to succeed ...
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How to read data from Agilent 34401a using GPIB-USB-B connection
I want to read data from an Agilent 34401a DMM directly into python or matlab so the data can be automatically recorded. However, I can't seem to make the connection. On my computer the device is ...
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Electronics components casing or packaging style types and diferences?
Is there any good visual guide or reference that explains the different types of casing styles like these ones that I come across every time I try to buy a component on farnell website:
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chip resistor/capacitor size vs performance for analog circuits
I am designing one four layer ADS1298 (TI) based analog PCB. Signal frequency is about 1.5Hz to 3.79kHz. It is a four layer board with most of the components and traces on top layer and the ground ...
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What is the difference between red glass diodes and blue glass diodes?
I have some old hermetically sealed glass diodes that have a blue color under the glass, which is different from the red ones that I normally see. Does anybody know what the difference between the red ...
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placing hermetical packages on PCB and soldering
I stumbled upon some hermetically enclosed packaged - Link.
The package has a small bulge/projection on the bottom. This makes the package leads basically float without contact with the PCB. How do we ...
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Eagle: IC package variant, different pins bonded out
I'm trying to create an Eagle component for the Altera EP4CE22, which comes in BGA and SMD packages, where different pins are actually available on the outside of the package.
Is it possible to reuse ...
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decoding the symbols of the Abracon series ASTMLP marking
I purchased the ASTMLPE-100,000MHZ-L JET component. I would like to figure out what is encrypted in the component labeling.
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Pins in standard part supporting multiple packages not connected
I have two parts on my board that each support multiple packakes so that it easier to find a fitting part. Both are taken from the libraries that came with eagle
a potentiometer: TRIM_1234-S64YW (...
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